Foundry-flask.



E. P. POWER.

FOUNDRY PLASK. APPLICATION FILED JAR. 14, 1909.

Patented May 18, 1909.

2 SHEETS-SHEET '1.

WITNESSES THE NORRIS n'rsRs cm, mumua'lonr, b. r:

2 sums-sun's.

Patented May 18, 1909.

' E. 1?. POWER.

FOUNDRY I FLASK. APPLICATION FILED JAN.14, 1909.

@dmunu, v

WITNESSES EDWARD P. POWER,

I ATET or CLEVELAND, oi-no.

FOUNDRY-FLASK.

Application filed January 14, 1909.

are sections on the lines II-II and IIIIII respectively of Fig. 1 andFigs. 4, 5, 6, 7 and 8 are detail perspective views hereinafter moreparticularly described.

My invention has relation to foundry flasks, and is designed to provideimproved means for supporting the sand in the top por tion or cope ofthe flask. l-Ieretofore, the common way of doing this has been to ramthe sand between flask bars secured with bolts to the sides of theflask. For deep hanging bodies of sand, special hooks are provided, suchhooks being supported by the flask bars. Where it is necessary to makeirregular partings, special flask bars have to be made. In many casesthese special arrangements are expensive; the parts are fastened withbolts which get loose and work out and become lost, and the entirearrangement is more or less unsatisfactory.

The object of my invention is more particularly to provide sand-su)porting means which can be secured to the flask without the use ofbolts; which can be adapted to suit a wide range of patterns; and whichform simple and effective means for the pur ose.

The nature of my invention wil be best understood by reference to theaccompanying drawings, which will now be described, it being premised,however, that various changes may be made in the details of construction and arrangement of the parts with out departing from thespirit and scope of my invention as defined in the appended claims.

In these drawings, the numeral 2 designates the cope portion of afoundry flask, which may be in general of any usual or wellknownconstruction. In accordance with my invention, the two opposite sides orends of the flask are provided with inwardly projecting lugs 3, arrangedin two rows, and one above another, as clearly shown in Fig. 3. Theselugs may be of various forms. In Fig. 4 the upper lugs are shown ashaving the downwardly and outwardly inclined upper Specification ofLetters Patent.

Patented May 18, 1909.

Serial No. 472,349.

surfaces 4, while the lower lugs have the up- 5 wardly and outwardlyinclined lower surfaces 5. In the form shown in Fig. 5, these lugs havestraight upper and lower surfaces. 6 designates flask bars orpartitions. Each end portion of each of these bars is provided withpairs of lugs 7 or 7 which are designed to engage the lugs 3 in themanner clearly shown in Figs. 4 and 5, and thus support the bars in theflask. In Fig. 4 the lugs 7 are shown as of triangular form to fit thebeveled upper faces 4 of the lugs 3, while in Fig. 5 they are shown at 7as of rectangular form to "fit the straight upper faces of the lugs 3.

The sides or ends of the flask are provided with the key holes 8intermediate each pair of lugs 3, and the bars 6 are firmly secured inposition by means of keys or wedges 9 driven into these openings andagainst the upper edges of the bars. The provision of the two sets oflugs 3, enables the cope section to be used reversibly, since the lugs 7on the bars may engage a pair of either the upper or the lower series ofthe lugs 3.

Each of the bars 6 is formed on the inner face with a plurality ofdovetail lugs 10, be tween which sand supports 11 of the form shown inFigs. 6 and 7 may be placed, being secured between said lugs by means ofsuitable keys or wedges driven in the seats 12 provided therefor. Thesepieces may be placed at the proper height in the cope to suit theparticular pattern being used, and can be readily adapted to a widerange of patterns. The bars 6, or any of them, can be placed in a higherposition in the cope than that shown, by simply omitting the Wedges 9and holding the bars in raised position by means of wedges 13 as shownin Fig. 2. The pieces 11 not only support the sand, but the lugs 3 0nthe sides of the flask, and also the lugs 10 on the bars 6 also assistin carrying the sand.

With metal flasks the lugs 3 may be readily cast on the ends or sidesthereof. For wooden as shown in Fig. 8, having bolt holes or other meansby which they may be rigidly secured to the flask body and provided withlugs 15 which correspond to the lugs 3 before de scribed. By means ofthese brackets the advantages of the invention may be largely obtainedwith wooden flasks.

The invention provides a simple and eflicient means for supporting sandin a cope or foundry flask without the use of the special flasks Iprovide a series of brackets 14, such be readily adapted to suit a widerange of devices commonly employed, and which can patterns. Thearrangement of the lugs 3 it will be noted is such that the cope may bereadily inverted and used either side up.

It will be understood that any desired number of bars 6 may be employed,according to the nature of the pattern; that the manner of supportingthe bars and flasks can be changed in detail, and that various forms ofsupporting pieces 11 may be secured to the bars 6.

What I claim is 1. A foundry flask having a plurality of detachable barsor partitions detachably secured therein, said bars or partitions havinglaterally projecting lugs; substantially as described.

2. A foundry flask having a plurahty of bars or partitions, detachablysecured there in, said bars or partitions being provided with laterallyprojecting lugs, and sand-support ing pieces arranged to be held andsupported by said lugs; substantially as described.

3. A foundry flask having opposite sides or ends provided each with lugsor projections arranged in pairs, and bars arranged to fit between theprojections and having laterally projecting lugs at both sides thereof,said lugs being arranged to rest upon the end surfaces of two of thelugs or projections of the flask; substantially as described.

4. A cope section for foundry flasks, having sides or ends provided eachwith two series of lugs or projections arranged in pairs, one seriesabove the other, and bars arranged to seat between the pairs ofprojections and having each two oppositely projecting lugs at each end,said lugs being arranged to have a supporting engagement with the endsurface of a pair of either of the two series of lugs or projections onthe cope section, together with means for detachably securing the barsin their seats; substantially as described.

5. A foundry flask having a bar or partition detachably secured therein,said bar or partition having a laterally projecting lug formed with adove-tailed or undercut recess may be supported at different heightsinde- 1 pendently of the lugs on the bars; substantially as described. 1

In testimony whereof, I have hereunto set my hand.

EDWARD P. POWER. l/Vitnesses:

JOHN H. Hose, HEnsorrEL S. HAY.

